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Good Voltage On A Q6600


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What's the highest voltage you can reasonably give a Q6600 above 1.5? I'm on a 680i with good air trying to get past a 3.3 wall.

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G0 stepping batch 37B. Less than a year. Thermals are good in my setup and I'm otherwise adequately overvolted. Just wondering how much more I could reasonably push the cpu voltage to get past a wall.

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Mine (at 1.425 vcore) hits just over 80C with a Tuniq Tower @ 3.33 GHz when running IntelBurnTest. I can't imagine running much hotter than that...so my max is just that, 1.425. I've heard that 1.55 or so is just about the point of diminishing returns but I can't see how any decent air cooler could keep that kind of heat under control...

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What's the highest voltage you can reasonably give a Q6600 above 1.5? I'm on a 680i with good air trying to get past a 3.3 wall.

key word here being "reasonably" i have put up to 1.7 into this one for short periods just to see "what if's"....but this one is a turd to rev up...most guy's i read about do very well at around 1.5 to1.55...today i'm maintaining 3.2 9x356 with 1.46875v...that gives a vcore of 1.456 with temps around 50c...

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cjloki - you'd be better off to drop the multiplier by 1 and crank up the FSB. Higher FSB on a Core 2 Quad = higher die-to-die bandwidth, which will increase your multi-threaded efficiency by a decent amount. :)

 

8x400 would keep your same clock rate but allow your memory to run at 1:1 and your FSB would be 1600 MHz as opposed to 1424 MHz.

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cjloki - you'd be better off to drop the multiplier by 1 and crank up the FSB. Higher FSB on a Core 2 Quad = higher die-to-die bandwidth, which will increase your multi-threaded efficiency by a decent amount. :)

 

8x400 would keep your same clock rate but allow your memory to run at 1:1 and your FSB would be 1600 MHz as opposed to 1424 MHz.

you are so right waco...!!...i will do that tommorrow for certain....i actually had the thing set up just like you recommended for awhile, several weeks, but got a wild hair a few days ago and switched it to this for no particular reason....and just like you said, all it did was destabilize and raise temps...thanx mister...!! B:)

 

ok there we go...400x8 again

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I've heard that 1.55 or so is just about the point of diminishing returns but I can't see how any decent air cooler could keep that kind of heat under control...

My Q6600 has a VID of 1.325v (I think that's the highest you can get?) and it can take 1.6+ V quite easily

 

When I set the X48-DS4 to 1.6v with LLC enabled, the vCore in CPU-Z shows anything from 1.580v to 1.691v, IBT was showing peak loads around 72c

 

Q6600 and NH-U12 are lapped, thin line of AS5 used, Noiseblocker XL2 fans in push-pull (120x120x25, 57CFM rated, 67CFM measured @ CustomPC)

 

It's proving very hard to attain the same OC as I had on water and the 680i boards (8x450=3600), so I'm probably going to settle for 8x425=3400 which is looking promising so far in stability tests, and then tighten up all the RAM timings, and reduce the voltages as much as I can whilst maintaining stability, and then reduce the fan speeds as much as I can...

 

The reason? This CPU has been relegated from main PC to quiet audio playback PC / fileserver... but that doesn't mean it should run at stock speed, I may well use it as part of a network render/encode farm

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